US5390576A - Cutting machine - Google Patents
Cutting machine Download PDFInfo
- Publication number
- US5390576A US5390576A US08/232,406 US23240694A US5390576A US 5390576 A US5390576 A US 5390576A US 23240694 A US23240694 A US 23240694A US 5390576 A US5390576 A US 5390576A
- Authority
- US
- United States
- Prior art keywords
- cutter blade
- cutting
- sheets
- face
- flank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
- B26D7/2614—Means for mounting the cutting member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/0006—Cutting members therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/0006—Cutting members therefor
- B26D2001/0053—Cutting members therefor having a special cutting edge section or blade section
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/869—Means to drive or to guide tool
- Y10T83/8821—With simple rectilinear reciprocating motion only
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/929—Tool or tool with support
- Y10T83/9454—Reciprocable type
Definitions
- the present invention relates to a guillotine-type cutting machine and more particularly to an improvement in a cutter blade for cutting a large number of stacked large size sheets or plates.
- Cutting machines are used to cut a stack, which includes a large number of thin sheets or plates such as paper sheets, plastic sheets, aluminum plates, etc., into a plurality of predetermined small size sheets.
- the cutting machines are of a guillotine type in which a single-edged cutter blade is moved vertically to cut the sheets.
- the cutter blade has a cutting face and a vertically flat face or a back face intersecting the cutting face to form a cutting edge. In cutting the sheets, the cutting face pushes cut sheets away from the stack while the flat face is made to face the cut surface of the stack.
- Such a cutter blade tends to have cutting dust stuck thereto after only a few cutting operations, depending on the material of the sheets and the number of sheets in the stack.
- the dust causes scratches to be formed on the cut surface of the sheets.
- various countermeasures have been taken to prevent this problem. For example, in the case of cutting a stack of aluminum sheets, a paper laminated with a polyethylene is interposed as a interleaf between each of the aluminum sheets, or a lubricant is applied to the cutter blade as described in Japanese Patent Laid-Open Publication No. 2-109699.
- the cutting edge of the cutter blade is damaged after as few as 10 cuts, which causes the cut surface of the metallic sheets to be scratched linearly by cutting dust. Also, the dust adheres to the back face of the cutter blade because of heat generated in cutting to cause a built-up edge portion to be formed on the cutting edge.
- a cutter blade of the present invention is provided, at a back face thereof, with a flank having an inclination of 1° to 7° with respect to the moving direction of the cutter blade such that the flank will not come into contact with the cut surface of the stack sheets.
- the flank may be formed with a flat surface or a curved surface. Also, the flank may be formed by inclining a cutter blade with a spacer attached to the back surface of cutter blade.
- the lifetime of the cutter blade can be lengthened, contributing to improvement in efficiency of cutting operations.
- FIG. 1 is a cross section illustrating a cutting condition with a cutter blade according to a preferred embodiment of the present invention
- FIG. 2 is a cross section illustrating a stack of aluminum sheets, which are piled alternately with interleaves and sandwiched by cardboard sheets;
- FIG. 3 illustrates a portion of the cutter blade of FIG. 1
- FIGS. 4 to 6 illustrate cutter blades according to additional embodiments of the present invention.
- a cutter blade 10 has a cutting face 11 and a vertically flat face or a back face 12.
- the back face 12 is provided with a flank 13.
- the width of the cutter blade 10 is 1.8 m.
- the cutter blade 10 is attached to the base plate of a drive unit 100 (not illustrated schematically) by screws and driven in a direction indicated by an arrow which is perpendicular to a cutting stage 25.
- a clamp 16 presses and fixes stacked sheets 18 on the cutting stage 25.
- a number of aluminum sheets 20 and a number of interleaves 21 are first piled alternately, all of which are sandwiched by cardboard sheets 22 from upper and lower sides to form a set. Several sets thereof are piled one over another to constitute the stacked sheets 18 disposed on the cutting stage 25.
- the cutting machine 9 cuts presensitized plates having aluminum supports.
- the invention also applies to cutting stacks of paper, plastic sheets, etc.
- a cut surface 18a of the stacked sheets 18 is formed by means of the cutter blade 10, and is parallel to a moving direction of the cutter blade 10.
- a wood pad 24 held by a pad holder 23 is fitted in a recess 26 of the cutting stage 25.
- the cutting edge of the cutter blade 10 cuts into the wood pad 24 so as to cut the stacked sheets 18 completely.
- the flank 13 is inclined at an angle ⁇ with respect to the moving direction of the cutter blade 10 so as not to be in contact with the cut surface 18a.
- the angle ⁇ is preferably set to be in a range of 1° to 7°. If the angle ⁇ is less than 1°, a built-up edge portion will quickly form to cause scratches of the cut surface 18a. If the angle ⁇ is more than 7°, the cutter blade may not be strong enough and thus may be broken.
- the cutter blade 10 is let down from an initial position by the drive unit 100. Then, the cutting edge of the cutter blade 10 cuts into the stacked sheets 18. The cut portions 19 of the stacked sheets 18 are pushed by the cutting face 11 in a direction X as indicated in FIG. 1. Thereafter, the cutter blade 10 is raised to retreat to the initial position. After the clamp is released, the stacked sheets 18 are moved by a predetermined length in the direction X and pressed and fixed again by the clamp 16. As soon as the cut portion 19 of the stacked sheets 18 are removed from the cutting stage 25, the cutter blade 10 in the initial position is let down again. This operation is repeated to cut the stacked sheets 18 sequentially.
- the number of times which the cutter blade 10 can reliably perform sequential cuttings varies in accordance with the kind of stacked sheet material, the number of piled sheets in a stack, and the angle ⁇ of the flank provided in the cutter blade.
- the angle ⁇ of the flank 13 of the cutter blade 10 was varied to test how many times the cutter blade 10 can cut the stacked sheets 18.
- 50 aluminum sheets of 0.3 mm thickness and 50 interleaves were alternately piled, all of which were sandwiched by the two cardboard sheets 22 to form one set. Three sets thereof were piled one over another to constitute the stacked sheets 18.
- the stacked sheets 18 were cut at 550 mm.
- the cutter blade 10 was formed of high-strength steel. The results of the test are in the following Table 1.
- a cutter blade 30 has a curved flank 31.
- a cutter blade 40 has a flank 41 with a recessed portion 42.
- FIG. 6, illustrating a fourth embodiment, when attaching a cutter blade 50 with a flat back face 52 to a base plate 54 of the drive unit, a spacer 51 may be inserted to incline the cutter blade 50. Thereby, the inclined back face 52 serves as a flank.
Abstract
Description
TABLE 1 ______________________________________ 9.0° or Angle (θ) 0.02° 0.5° 1.0° 3.0° 5.0° 7.0° more ______________________________________Maximum 10 50 250 500 700 1000 not times of able successive to cut Cuts Cutter up←→down Strength ______________________________________
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/232,406 US5390576A (en) | 1992-03-26 | 1994-04-25 | Cutting machine |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4-068717 | 1992-03-26 | ||
JP4068717A JP2773828B2 (en) | 1992-03-26 | 1992-03-26 | Cutting blade for stacked metal plates |
US3977593A | 1993-03-26 | 1993-03-26 | |
US08/232,406 US5390576A (en) | 1992-03-26 | 1994-04-25 | Cutting machine |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US3977593A Continuation | 1992-03-26 | 1993-03-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
US5390576A true US5390576A (en) | 1995-02-21 |
Family
ID=13381831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/232,406 Expired - Lifetime US5390576A (en) | 1992-03-26 | 1994-04-25 | Cutting machine |
Country Status (4)
Country | Link |
---|---|
US (1) | US5390576A (en) |
EP (1) | EP0562631B1 (en) |
JP (1) | JP2773828B2 (en) |
DE (1) | DE69308339T2 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5820999A (en) * | 1996-11-01 | 1998-10-13 | Aluminum Company Of America | Trimmed aluminum sheet |
US20030047055A1 (en) * | 2001-09-13 | 2003-03-13 | Meinhard Schwaiger | Apparatus for cutting plastic profiles |
US6782788B1 (en) * | 1997-12-18 | 2004-08-31 | Springs Window Fashions Lp | Cutting blade for a cutting apparatus |
US20050150340A1 (en) * | 2004-01-08 | 2005-07-14 | Graham Packaging Company, L.P. | Blade having a depression for trimming/cutting articles |
US20060107811A1 (en) * | 2004-11-22 | 2006-05-25 | Nitto Denko Corporation | Laminate-cutting method, cutting device, and laminate-cutting pedestal |
US20070068010A1 (en) * | 2005-09-26 | 2007-03-29 | Fuji Photo Film Co., Ltd. | Cutting blade |
US20070261525A1 (en) * | 2006-05-10 | 2007-11-15 | Chuji Yamaguchi | Guillotine cutter |
US7430951B1 (en) | 2000-08-24 | 2008-10-07 | Alcoa Inc. | Method and apparatus for trimming aluminum sheet to reduce slivers and improve edge quality |
US20120180613A1 (en) * | 2011-01-13 | 2012-07-19 | Lakes Precision, Inc. | Anti-Accumulation Wire Conductor Process Blade and Assembly |
GB2492832A (en) * | 2011-07-14 | 2013-01-16 | Atlas Converting Equipment Ltd | Web slitting blade |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL9400149A (en) * | 1994-01-31 | 1995-09-01 | A K Van Der Wijngaart Beheer B | Cutting blade and method for sharpening a cutting blade |
DE102005049399A1 (en) * | 2005-10-13 | 2007-04-19 | Senator Technology Gmbh | Cutting device for e.g. paper, has knife angularly formed in angular faces of cutting edge, where angular faces enclose specific angle with reference plane that runs parallel to coplanar side of knife |
JP5206270B2 (en) * | 2007-11-06 | 2013-06-12 | 日立化成株式会社 | Method for cutting laminate and method for producing strip using the same |
AT516768B1 (en) * | 2015-01-26 | 2018-12-15 | Elvira Rieder | cutting tool |
JP6187827B2 (en) * | 2014-12-08 | 2017-08-30 | ツジカワ株式会社 | PRESSURE CUTTING CUTTING DIE, MANUFACTURING METHOD FOR CUTTING CUTTING CUTTING DIE, AND METHOD OF CUTTING CUTTING WORK USING CUTTING CUTTING CUTTER |
JP7092299B2 (en) * | 2017-12-11 | 2022-06-28 | 日本ゼオン株式会社 | Resin sheet manufacturing method and cutting blade |
WO2020035950A1 (en) * | 2018-08-17 | 2020-02-20 | Cala&Co.合同会社 | Method for manufacturing eggshell-shaped container from eggshell-shaped object |
CN111673804B (en) * | 2020-07-20 | 2021-07-06 | 常州纳捷机电科技有限公司 | Flat edge cutting method for hard plate |
DE102021116588A1 (en) | 2021-06-28 | 2022-12-29 | Future Blade GmbH | Device for cutting sheet material |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE254350C (en) * | ||||
US3364556A (en) * | 1966-07-11 | 1968-01-23 | Charlton Press Inc | Printing plate delaminating apparatus |
US3509790A (en) * | 1967-10-19 | 1970-05-05 | Horst Hoppe | Deckle edge cutting knife |
US3532021A (en) * | 1968-07-03 | 1970-10-06 | Wallace Murray Corp | Cutting knife |
DE2437860A1 (en) * | 1974-08-06 | 1976-02-19 | Ledermann & Co | Mounting arrgmt. for circular cutters - has disc hubs carrying individual blades compressed together on shaft |
JPS55157419A (en) * | 1979-05-29 | 1980-12-08 | Shin Kobe Electric Mach Co Ltd | Lead alloy plate cutter |
US4427740A (en) * | 1982-04-09 | 1984-01-24 | Westinghouse Electric Corp. | High maximum service temperature low cure temperature non-linear electrical grading coatings resistant to V.P.I. resins containing highly reactive components |
JPH02109699A (en) * | 1988-10-17 | 1990-04-23 | Fuji Photo Film Co Ltd | Cutting method for stacking metal sheet |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH221326A (en) * | 1941-08-05 | 1942-05-31 | Max Blanchod S A | Knife for automatic trimmer. |
JPS5620936B2 (en) * | 1974-02-27 | 1981-05-16 | ||
JPS588250B2 (en) * | 1978-04-26 | 1983-02-15 | 日本ゼオン株式会社 | Cutting device for adhesive materials embedded with hollow fibers |
JPS60172495A (en) * | 1984-02-17 | 1985-09-05 | 株式会社日立製作所 | Method of cutting assembling substrate for liquid crystal display element |
JPH0796196B2 (en) * | 1988-09-17 | 1995-10-18 | 富士写真フイルム株式会社 | Cutting method for stacked metal sheets |
-
1992
- 1992-03-26 JP JP4068717A patent/JP2773828B2/en not_active Expired - Fee Related
-
1993
- 1993-03-26 EP EP93105053A patent/EP0562631B1/en not_active Expired - Lifetime
- 1993-03-26 DE DE69308339T patent/DE69308339T2/en not_active Expired - Fee Related
-
1994
- 1994-04-25 US US08/232,406 patent/US5390576A/en not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE254350C (en) * | ||||
US3364556A (en) * | 1966-07-11 | 1968-01-23 | Charlton Press Inc | Printing plate delaminating apparatus |
US3509790A (en) * | 1967-10-19 | 1970-05-05 | Horst Hoppe | Deckle edge cutting knife |
US3532021A (en) * | 1968-07-03 | 1970-10-06 | Wallace Murray Corp | Cutting knife |
DE2437860A1 (en) * | 1974-08-06 | 1976-02-19 | Ledermann & Co | Mounting arrgmt. for circular cutters - has disc hubs carrying individual blades compressed together on shaft |
JPS55157419A (en) * | 1979-05-29 | 1980-12-08 | Shin Kobe Electric Mach Co Ltd | Lead alloy plate cutter |
US4427740A (en) * | 1982-04-09 | 1984-01-24 | Westinghouse Electric Corp. | High maximum service temperature low cure temperature non-linear electrical grading coatings resistant to V.P.I. resins containing highly reactive components |
JPH02109699A (en) * | 1988-10-17 | 1990-04-23 | Fuji Photo Film Co Ltd | Cutting method for stacking metal sheet |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020017173A1 (en) * | 1996-11-01 | 2002-02-14 | Ming Li | Method and apparatus for trimming aluminum sheet |
US6976414B2 (en) | 1996-11-01 | 2005-12-20 | Alcoa Inc. | Method and apparatus for trimming aluminum sheet |
US5820999A (en) * | 1996-11-01 | 1998-10-13 | Aluminum Company Of America | Trimmed aluminum sheet |
US6782788B1 (en) * | 1997-12-18 | 2004-08-31 | Springs Window Fashions Lp | Cutting blade for a cutting apparatus |
USRE40605E1 (en) | 1997-12-18 | 2008-12-16 | Springs Window Fashions, Llc | Cutting apparatus for window coverings and methods therefor |
US7430951B1 (en) | 2000-08-24 | 2008-10-07 | Alcoa Inc. | Method and apparatus for trimming aluminum sheet to reduce slivers and improve edge quality |
US20030047055A1 (en) * | 2001-09-13 | 2003-03-13 | Meinhard Schwaiger | Apparatus for cutting plastic profiles |
US7204180B2 (en) * | 2001-09-13 | 2007-04-17 | Technoplast Kunststofftechnik Gmbh | Apparatus for cutting plastic profiles |
US20050150340A1 (en) * | 2004-01-08 | 2005-07-14 | Graham Packaging Company, L.P. | Blade having a depression for trimming/cutting articles |
US20060107811A1 (en) * | 2004-11-22 | 2006-05-25 | Nitto Denko Corporation | Laminate-cutting method, cutting device, and laminate-cutting pedestal |
US20070068010A1 (en) * | 2005-09-26 | 2007-03-29 | Fuji Photo Film Co., Ltd. | Cutting blade |
US20070261525A1 (en) * | 2006-05-10 | 2007-11-15 | Chuji Yamaguchi | Guillotine cutter |
US7669509B2 (en) * | 2006-05-10 | 2010-03-02 | Horizon International Inc. | Guillotine cutter |
US20120180613A1 (en) * | 2011-01-13 | 2012-07-19 | Lakes Precision, Inc. | Anti-Accumulation Wire Conductor Process Blade and Assembly |
GB2492832A (en) * | 2011-07-14 | 2013-01-16 | Atlas Converting Equipment Ltd | Web slitting blade |
Also Published As
Publication number | Publication date |
---|---|
EP0562631B1 (en) | 1997-03-05 |
JPH05277984A (en) | 1993-10-26 |
EP0562631A1 (en) | 1993-09-29 |
DE69308339T2 (en) | 1997-06-12 |
JP2773828B2 (en) | 1998-07-09 |
DE69308339D1 (en) | 1997-04-10 |
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AS | Assignment |
Owner name: FUJIFILM CORPORATION, JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FUJIFILM HOLDINGS CORPORATION (FORMERLY FUJI PHOTO FILM CO., LTD.);REEL/FRAME:018904/0001 Effective date: 20070130 Owner name: FUJIFILM CORPORATION,JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FUJIFILM HOLDINGS CORPORATION (FORMERLY FUJI PHOTO FILM CO., LTD.);REEL/FRAME:018904/0001 Effective date: 20070130 |